STR# #2973: applied patch str_2973_r9958_sun-fix-errors-5.patch verbatim.

    src/Fl_Tree_Item.cxx -- solve: "Fl_Tree_Item.cxx",    line 614: Error: Initializing int& requires an lvalue.
    FL/Fl_Preferences.H  -- solve: "FL/Fl_Preferences.H", line 196: Error: Fl_Preferences::RootNode is not accessible from 0
    FL/Fl_Tree_Item.H    -- solve: "Fl_Tree_Item.cxx",    line 614: Error: Initializing int& requires an lvalue.
    test/unittests.cxx   -- solve: "unittests.cxx",        line 95: Error: The type "UnitTest*[]" is incomplete.
            


git-svn-id: http://seriss.com/public/fltk/fltk/branches/branch-1.3@9978 ea41ed52-d2ee-0310-a9c1-e6b18d33e121